Fig. 12
Primary stellar radii over binary orbital periods for a number of heartbeat systems, with the orbital eccentricity color-coded. Triangles mark the main-sequence stars from Shporer et al. (2016), circles the RGB stars from Beck et al. (2014). For comparison ε Cyg has been added, denoted by a cross. The plot has been created in analogy to Beck et al. (2014).
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